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| #include "ref.h"
|
| void ref_cmplx_mag_f32(
| float32_t * pSrc,
| float32_t * pDst,
| uint32_t numSamples)
| {
| uint32_t i;
|
| for(i=0;i<numSamples*2;i+=2)
| {
| *pDst++ = sqrtf(pSrc[i] * pSrc[i] + pSrc[i+1] * pSrc[i+1]);
| }
| }
|
| void ref_cmplx_mag_q31(
| q31_t * pSrc,
| q31_t * pDst,
| uint32_t numSamples)
| {
| uint32_t i;
| q31_t acc0,acc1,out;
|
| for(i=0;i<numSamples*2;i+=2)
| {
| acc0 = (q31_t)(((q63_t)pSrc[i] * pSrc[i]) >> 33);
| acc1 = (q31_t)(((q63_t)pSrc[i+1] * pSrc[i+1]) >> 33);
| out = acc0 + acc1;
| *pDst++ = (q31_t)(sqrtf((float)out / 2147483648.0f) * 2147483648.0f);
| }
| }
|
| void ref_cmplx_mag_q15(
| q15_t * pSrc,
| q15_t * pDst,
| uint32_t numSamples)
| {
| uint32_t i;
| q31_t acc0,acc1;
| q15_t out;
|
| for(i=0;i<numSamples*2;i+=2)
| {
| acc0 = pSrc[i] * pSrc[i];
| acc1 = pSrc[i+1] * pSrc[i+1];
| out = (q15_t) (((q63_t) acc0 + acc1) >> 17);
| *pDst++ = (q15_t)(sqrtf((float)out / 32768.0f) * 32768.0f);
| }
| }
|
|
